When he was released from jail on Jan. 11, 2006, Cambodian activist Yeng Virak refused to thank Prime Minister Hun Sen for his freedom. He had just spent 11 days behind bars after being accused of defaming the government at an event celebrating human rights, and in his view he shouldn’t have been locked up in the first place. “I was not a criminal,” he tells TIME at a cafe in the capital Phnom Penh, slapping a shaky table for emphasis.